/*
 * Copyright 2015-2019 The OpenZipkin Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */
import PropTypes from 'prop-types';
import React from 'react';
import { CSSTransition } from 'react-transition-group';

const propTypes = {
  active: PropTypes.bool.isRequired,
};

const LoadingOverlay = ({ active }) => (
  <div>
    <CSSTransition
      in={active}
      className="loading-overlay"
      classNames="loading-overlay"
      timeout={100}
      mountOnEnter
      unmountOnExit
    >
      <div>
        {
          active ? (<i className="fa fa-spinner fa-spin loading-overlay-icon" />) : null
        }
      </div>
    </CSSTransition>
  </div>
);

LoadingOverlay.propTypes = propTypes;

export default LoadingOverlay;
